Page:Perfect 10, Inc. v. Amazon.com, Inc..pdf/30

 indexing websites with infringing content and linking to third-party infringing sites. This is a claim of contributory liability, not vicarious liability. Although “the lines between direct infringement, contributory infringement, and vicarious liability are not clearly drawn,” Sony, 464 U.S. at 435 n. 17, 104 S.Ct. 774 (internal quotation omitted), in general, contributory liability is based on the defendant’s failure to stop its own actions which facilitate third-party infringement, while vicarious liability is based on the defendant’s failure to cause a third party to stop its directly infringing activities. See, e.g., Ellison, 357 F.3d at 1077–78; Fonovisa, 76 F.3d at 261–64. Google’s failure to change its operations to avoid assisting websites to distribute their infringing content may constitute contributory liability, see supra Section IV.A. However, this failure is not the same as declining to exercise a right and ability to make third-party websites stop their direct infringement. We reject Perfect 10’s efforts to blur this distinction.

Because we conclude that Perfect 10 has not shown a likelihood of establishing Google’s right and ability to stop or limit the directly infringing conduct of third-party websites, we agree with the district court’s conclusion that Perfect 10 “has not established a likelihood of proving the [control] prong necessary for vicarious liability.” Perfect 10, 416 F.Supp.2d at 858.
 * C.&ensp;Digital Millennium Copyright Act

Google claims that it qualifies for the limitations on liability set forth in title II of the DMCA, 17 U.S.C. § 512. In particular, section 512(d) limits the liability of a service provider “for infringement of copyright by reason of the provider referring or linking users to an online location containing infringing material or infringing activity, by using information location tools, including a directory, index, reference, pointer, or hypertext link” if the service provider meets certain criteria. We have held that the limitations on liability contained in 17 U.S.C. § 512 protect secondary infringers as well as direct infringers. Napster, 239 F.3d at 1025.

The parties dispute whether Google meets the specified criteria. Perfect 10 claims that it sent qualifying notices to Google and Google did not act expeditiously to remove the infringing material. Google claims that Perfect 10’s notices did not comply with the notice provisions of section 512 and were not adequate to inform Google of the location of the infringing images on the Internet or identify the underlying copyrighted work. Google also claims that it responded to all notices it received by investigating the webpages identified by Perfect 10 and suppressing links to any webpages that Google confirmed were infringing.

Because the district court determined that Perfect 10 was unlikely to succeed on its contributory and vicarious liability claims, it did not reach Google’s arguments under section 512. In revisiting the question of Perfect 10’s likelihood of success on its contributory infringement claims, the district court should also consider whether Google would likely succeed in showing that it was entitled to the limitations on injunctive relief provided by title II of the DMCA.

Perfect 10 claims that Amazon.com displays and distributes Perfect 10’s copyrighted images and is also